Yoon Ha Lee is a Korean-American sf/f writer who received a B.A. in math from Cornell University and an M.A. in math education from Stanford University, and is pursuing an MFA in media composition and orchestration at ThinkSpace Education. His young adult mecha novel Moonstorm won the Locus Award for Best YA Novel, is currently a finalist for the Ignyte Award (YA), and was a finalist for the Nebula Award (YA).

Yoon's novel Ninefox Gambit won the Locus Award for best first novel, and was a finalist for the Nebula, Hugo, and Clarke awards. His middle grade space opera Dragon Pearl from Rick Riordan Presents won the Mythopoeic Award for Children's Literature and the Locus Award for best YA novel, and was a New York Times bestseller.

Yoon's short fiction has appeared in venues such as Reactor (formerly Tor.com), Audubon Magazine, and the Robert Wood Johnson Foundation's anthology Take Us to a Better Place. His TTRPG Ninefox Gambit RPG, co-authored with Marie Brennan, was a Nebula finalist in game writing.

He has written comic scripts for Marvel (Doom's Division #1-5 and "Epée Is Truth" in The X-Men: The Wedding Special #1) as well as game writing (Counterplay Games' Godfall, Failbetter Games' Winterstrike, Alderac Entertainment Group's *Legend of the Five Rings *CCG).

Yoon's hobbies include game design, art, and destroying the reader. He lives in Louisiana with his family and pets (5-string viola, morin khuur, spinning wheel... catten) and has not yet been eaten by alto clefs.